{"id":16181,"date":"2022-12-02T11:13:56","date_gmt":"2022-12-02T10:13:56","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=16181"},"modified":"2022-12-02T14:42:19","modified_gmt":"2022-12-02T13:42:19","slug":"els-geolegs-de-can-vilumara","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/els-geolegs-de-can-vilumara\/","title":{"rendered":"Les Escletxes del  Vilumara"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-16185 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/tutores_santa_maria_de_cervello-300x233.jpg\" alt=\"\" width=\"300\" height=\"233\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/tutores_santa_maria_de_cervello-300x233.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/tutores_santa_maria_de_cervello-768x596.jpg 768w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/tutores_santa_maria_de_cervello.jpg 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Dijous 1 de desembre la classe de 1r D de l&#8217;<strong><a href=\"https:\/\/agora.xtec.cat\/inscanvilumara\/\">Institut Can Vilumara<\/a>\u00a0 <\/strong>de L&#8217;Hospitalet de Llobregat ha investigat les roques que es troben a les <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/geologia\/les-escletxes-i-els-riscs-geologics\/\" target=\"_blank\" rel=\"noopener\">Escletxes del Papiol<\/a> . Han fet una gran feina com a ge\u00f2legs!.<\/p>\n<p>Per comen\u00e7ar han comentat diversos aspectes del relleu de la zona, com els diferents materials que podien distingir: un de superior de color blanquin\u00f3s i un d\u2019inferior vermell\u00f3s. Tamb\u00e9 han observat que la zona d&#8217;estudi es situa en un vessant. Seguidament, s&#8217;han posat el casc de ge\u00f2leg, i, per grups, han revisat el material necessari per investigar: martell de ge\u00f2leg, cinta m\u00e8trica, br\u00faixola i \u00e0cid clorh\u00eddric. Amb tot preparat, han anat a estudiar els dos materials.<\/p>\n<p>Per descobrir de quins materials es tractava, han fet un seguit de proves en ambdues roques, com comprovar la consist\u00e8ncia, la permeabilitat o veure si reaccionava amb l\u2019\u00e0cid clorh\u00eddric. Han confirmat que el material superior s\u00f3n roques calc\u00e0ries i l\u2019inferior s\u00f3n argiles.<\/p>\n<p>A continuaci\u00f3 s\u2019han endinsat en 4 escletxes i han mesurat la direcci\u00f3, l\u2019amplada i la profunditat de cadascuna. Han travessat algunes escletxes realment estretes. S&#8217;ho han passat d&#8217;all\u00f2 m\u00e9s b\u00e9!<img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-16184\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/muntatge-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/muntatge-300x300.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/muntatge-1024x1024.jpg 1024w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/muntatge-150x150.jpg 150w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/muntatge-768x768.jpg 768w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/muntatge-1536x1536.jpg 1536w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2022\/12\/muntatge.jpg 1564w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Per concloure, s&#8217;han posat en com\u00fa les dades de tots els grups i han acabat deduint com s&#8217;han format Les Escletxes. Han arribat a la seg\u00fcent conclusi\u00f3: com qu\u00e8 les roques calc\u00e0ries es degraden a causa de l&#8217;aigua de la pluja, aquest efecte durant milions d\u2019anys ha provocat que les esquerdes de les roques calc\u00e0ries s&#8217;anessin fent m\u00e9s grans i profundes fins a permetre a l&#8217;aigua arribar a les argiles inferiors. Com les argiles s\u00f3n impermeables, l&#8217;aigua fa que es tornin toves, aix\u00f2\u00a0 juntament amb el pendent ha provocat que les calc\u00e0ries llisquin vessant avall fins a formar les Escletxes que veiem avui dia.<\/p>\n<p>Per finalitzar han valorat el risc que aquest fenomen de vessant suposa per les cases d&#8217; El Papiol i han proposat mesures per reduir aquest risc .<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dijous 1 de desembre la classe de 1r D de l&#8217;Institut Can Vilumara\u00a0 de L&#8217;Hospitalet de Llobregat ha investigat les roques que es troben a les Escletxes del Papiol . Han fet una gran feina com a ge\u00f2legs!. Per comen\u00e7ar han comentat diversos aspectes del relleu de la zona, com els diferents materials que podien [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":16183,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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